Talking-machine.



w, N. DENNISON.

TALKING MACHINE. APPLICATION FILED MAR. 23, 1912.

Patented Aug. 1?, 1915.

3 SHEETS-SHEET-I.

INVENTOR W/zw/z/Y Dell/71 6012 By /v% ATTORNEY W. N. DENNISON.

TALKING MACHINE. APPLICATION man MAR. 28, m2.

a SHEETS-SHEET 2.

| l I l I I zgavm ATTORNEY Patented Aug. 17, 1915.

W. N. DENNISON.

TALKING MACHINE. APPLICATION FILED MAR. 28, I912.- 1,150,347. Patented Aug. 17, 1915.

3 SHEETS-SHEET 3.

INVENTOR ATTORNEY WITNESSES Fr es.

WILBUBN N. DENNISON, OF" MERGHANTVILLE, NEW JERSEY, ASSIG-NOB '.I.O VICTOR TALKING MACHINE comm, CORPORATION OF. NEW JERSEY.

:"ra mne-mcnmn 1,150,347. Original application filed mm. a, 1906,

following is a specification, this application being a division of application Serial No. 304,836, filed March 8,; 1906.

This invention relates to talking machines of the type commonly known as pneumatic,

and in which sound waves are impressed upon a fluid current by means cooperatlng with a sound record.

The main objects of this invention are, to provide an improved pneumatic talking machine, simple and durable in construct on and highly efficient in operation; to provide in a pneumatic talking machine an improved sound box or sound reproducer, and an improved mounting therefor; to provide in a pneumatic sound box an improved valve and means for balancing the same; to provide in a pneumatic sound box means for delicately and accurately controlling the flow of a fluid current therethrough; and to provide other improvements as will appear hereinafter. I

In the accompanying drawings, Figure 1 is a' fragmentary perspective view of atalking machine constructed in accordance with this invention; Fig. 2 a fragmentary central sectional view of a portion of the same; Fig.

3 a fragmentary end view of an improved sound box formmg part of th1s invention;

Fig. 4 a sectional view taken on the line 44 of Fig. 3; Fig. 5 a sectional view taken on line 55 of Fig. 3; Fig. 6 a perspective view showing parts of the same separated from each other; Fig. 7 an end view of a detail of the sound box; and Figs. 8 and 9 are perspective, views of details'ofthe same.

Referring tothedrawings, one embodiment of this invention comprises a cabinet 20. upon which is mounted the usual or any suitable turn-table 2l,for carrying the usual or any suitable sound record 22, the turntable being rotated by the usual driving mechanism -(not shown), gnounted in the cabinet 20.

Projecting rearwardly and upwardly from the cabinet 20 is a bracket 23, secured to ,the upper end of which and projecting inwardly therefrom is a horizontal ring or annular Specification of Letters latent.

Patented Aug. 17. 1915.

Serial No. 304,936. Divided and this application filed March 28,- 1912. Serial No.686,825.

support, 23. Depending from the rin 23',

box arm of tone arm 24, which is mounted to swing in a horizontal plane about a vertical pivot 24*; carried by the outer portion of the bracket 23 and engaging the under portion of the larger end of the tone arm. Projecting upwardly from the ring 23', and carried thereby, is a sound amplifying horn 25, communicating with the tone arm 24.

For supporting. a sound box in communication with the smaller free end of the tone arm 24, and for supplying the sound box with a fluid clu-rent', the smaller end of the tone arm terminates in a transverse tubular horizontal connection or support 27, rigidly secured thereto. The free end of the tone arm 2-1 is open and registers with an opening provided therefor through the wall of the transverse tubular support 27. Projecting .laterally in opposite directions from the box 30. One, 28, of these U-shaped tubes forms a supply tube for the sound box 30, and the other, 29, U-shaped tube forms a discharge pipe for the sound box. The U- shaped supply tube 28 communicates with.

.a supply pipe 31, which extends rearwardly from the tubular support 27 substantially parallel to the sound box arm 24. The front end of the supply pipe 31 is open and is secured in an opening provided therefor in the wall of the tubular support 27, this end of the pipe 31 being flush with the inner surface of the support 27. The rear'portion of the supply pipe 31 is rigidly secured to the larger end of the tone arm 2-1, curves downwardly, and terminates in communication with a piece of rubber or other flexible tubing 31, secured thereto and by which it is connected to. a suitable fluid compressor or other source of fluid supply shown diagrammatically in reduced. form at 28.

For connecting the U-shaped tubes 28 and 29-rotatably to the tubular support 27, theinner portion of the Ushaped tube 2%), forming the discharge passage between the sound box and the tonearm, is reduced in diameter and is extended entirely through to the opposite ends respectively of a sound the tubular support '27, fitting snugly but ro- I theU-shaped tube 29 and abutting against the adjacent end of the tubular support 27,

l and a collar 31 surrounding the reduced portion of the U-shaped tube 29 and engaging upon its outer side against the shoulder between the reduced inner portion of the U-shaped tube 29 and its main portion, and upon its inner side against the adjacent end of the tubular support 27 The inner end of the U-shaped tube 28 abuts against the inner end of the U-shaped discharge tube .29, and is rigidly connected thereto by means of a short tube, one end,

32, of which is closed and fits snugly within the end of the U-shaped discharge tube 29, and the other end of which is open and fits snugly in the inner end of the U-shaped supply tube 28. The closed end 32 of this short tube is arranged between the free end of the tone arm 24 and the adjacent end of the supply pipe 31, dividing the interior of thetubular support 27 into two chambers, 32 and 32", one, 32, of which communicates with the adjacent end of the supply pipe 31 through a substantially circular 30 opening through the cylindrical walls of the -short tube 32 and containing tube 29, which registers with a'correspondingopening leading through the tubular support 27, when the sound box is in operative position. The

other, 32", of these chambers communicates with the open free end of the'tone arm'24 through a, substantially circular opening provided through the cylindrical wall of the :U-shaped tube 29, which registers with the this construction. the sound box 30 is free to oscillate 'in' a vertical plane about the longitudinal axis of the tubular support 27 anda'lso may swing laterally across the rec 0rd about the vertical pivot 24' of the tone arm 24.

comprises (see Figs. 3to 9) a cylindrical I casing 33, open-at its inner end and closed at its outer end, and provided ,at its closed 'end with a projecting tubular portion 34,, Acoaxial therewith and telescoplng tightly within the outer end of the U-shaped supply tube 28 and forming an inlet for the sound box when the sound box is in operation. 1 For spreading and distributing thefluid current in the sound box, there is arranged within the casing 33, and coaxial therewith, a conical deflector 35, the apex of which faces toward the inlet of the sound box formed by the tubular projection 34. This conical deflector is slightly less in diameter 66 than the internal diameter of the casing 33,

opening in the end of the tone arm 24 when the sound box is in operative position. By

'and'is mounted upon a stud 36, coaxial therewith and projecting inwardly therefrom ,and the inner end of which is supported by a spider comprising arms 37, projecting radially from the stud 36,, and the outer ends of which are integral with or secured -to a cylindrical ring 38, which fits snugly within the interior of the casing 33.

For filtering'the flui'd current as it passes -through the sound box, and for equalizing its pressure, there is provided a foraminated diaphragm 40, preferably consisting of a,

piece of closely woven silk fabric, the margin of which is clamped between. the inner cylindrical surface of the ring 38, supportcal surface of a second cylindrical'ring 39, telescoping therein, the rear edges of the two'rings being preferably flush.

The open end of the casing 33 is reduced externally in diameter and the reduced portion is provided with screw threads 41, which engage corresponding internal threads of a cap or cover 42. The cap or' cover is provided with a cylindrical tubular extension 43,. projecting outwardly therefrom, coaxial therewith, and of less d-iameter than the. cap, andwhich telescopes tightly within the U-shaped discharge tube ing the deflector 35, and the outer cylindriphragm 40 and the inner surface of the cover 42.

The marginal portion of the valve-seat 44 is clamped in an annular internal groove provided'therefor' between the sound box casing 33 and its-cover 42. The-valve seat is, held in a predetermined position with respecttotheocover by means of a positioning pin 45, projecting through and rigidly secured to the valve seat and engaging in and the valve seat is thus prevented-from. rotating with respect to the cover as the cover is being rotated into position upon, or is being removed from, the casing 33.

The valve seat 44 is provided centrally with one or more openings or ports. When a plurality of ports are used, they may be in the form of a series of parallel narrow slits or openings 51, which preferably extendover an area somewhat greater than anopening 47 in the innerside of the cover, Y

the transverse sectional area of the opening 1 through-the tubular extension 43 forming the'outlet of the sound box, for a purpose herelnafter explained.

Cooperating with the valve seat 44, and.

between the valve seat and the adjacent lnner surface of the cover 42 of the sound box casing, is a valve 52, which is actuated 5 cooperates with a sound record 22, as described hereinafter.

The valve 52 is preferably in the form of a thin, flat plate or sheet of metal, preferably flexible, in which is arranged a series of 10 slits or openings 53, similar to the openings 51 in the valve seatAA, and so arranged that when the valve is in operative position on its seat 44 the bridges between the openings of the one register with and normally cover the openings of the other. To provide a suitable space to receive the valve and the stylus bar, the inner surface of the cover 42 is provided with a shallow recess or depressed portion 42, adapted to receive the valve, and-in which is located a: recess 48 extending radially with respect to the cover and adapted to receive the inner end of the stylus bar 50 and communicating with a radially extending opening 49 through the cylindrical wall of the cover, and through which the stylus bar projects outwardly from the sound box casing.

For securing the stylus bar 50 to the valve 1 52, the valve is preferably provided with a lug 54, brazed or otherwise secured thereby, and provided with an aperture within which the inner end of the stylus-bar 50 is snugly fitted and also-secured by aset-screw 56 extending through the lug and engaging the stylus bar.

The stylus bar 50 is mounted to oscillate upon a tension-spring 57 which passes transversely through the stylus bar and which is provided at its opposite ends with cars 58, which are secured to the valve seat 4% by means of screws threaded as at 59 into the valve seat, thus securing the spring 57 to the valveseat.

To prevent displacement of the valve in ':'its own plane, there is attached to the valve seat a screw 60, which passes through an opening 60 provided therefor in the valve, and to hold the valve" yieldingly against its seat the screw '60 may be provided with a head and a spring or rubber washer 61 may be interposed between the head of the screw and the outer surface of thevalve. When the stylus bar is oscillated by cooperation with the sound record, the valve will be which it. is mounted, and the outer end of the valve, the flexed portion, being slightly lifted from its seat and permitting the fluid current to pass through the valve. The screw 60 and washer 61 may, however, be dispensed with and the valve be permitted to vibrate freely upon the tension spring 57 In the above described construction the 5 inner surface of the cover 42 is spaced from the opposite outer surface of the valve 52 flexed between the tension spring 57, upon only a sufficient distance to permit of the free oscillation of the valve, and to provide a narrow passage for the fluid current be tween the valve and the wall of the cover. In practice the distance between the valve and the adjacent wall ofthe cover, when the valve is in contact with its seat, is preferably only about 3/1000 of an inch. The object of this construction is to trap air passing between the valve and the cover to form a cushion for the valve.

In the operation of this invention, air or any other suitable fluid is conducted through the flexible-tube 31, supply pipe 31, chamber 32 and curved supply tube 28 into the interior of the sound box casing, 33, where the air impinges against the convex surface of the conical deflector 35, by which it is spread and directed toward the cylindrical wall of the sound box casing. The air then passes between the cylindrical wall of the sound box casing and the outer edge of the deflector-'35 and is delivered radially inwardly against the diaphragm or screen 40, striking the outer portions of the screen first. The air then passes through the screen 4'0 into the openings or ports 51 in the valve seat 44. .The deflector therefore acts in cooperation with the screen 40 to insure a uniform distribution of the air through the ports of the valve seat. If, some such provision were not made for spreading or distr'buting the air in the sound box, the air would impinge directly upon the inner side of the valve seat andwould pass through the various openings in the valve seat and valve at various speeds,

[more air passing through the middle of the through the central portion of the valve will continue directly out through the tubular outlet 43 of the sound box, and the portions of the air which pass around the valve or through the outer openings of the valve will first be deflected by the inner surface of the cover 42 tocushion the valve, and will then pass out through the tubular outlet 43 of the sound box, mingling with the air that has passed through the central portion of the valve. From the tubular outlet 43 of the sound box, the air passes through the U- shaped discharge tube 29 and through the circular opening in the inner portion of the tube and into, the tone arm 24, from whence it is delivered from the device through the 5 tuated when in operation-by the stylus bar and stylus oscillated by and in accordance with a sound record, and consequently that vibrations corresponding to the sound waves recorded on the record will be set up in the air passing through the sound box by thisoscillation of the valve. It is also evident that the sound box may be inverted from an operative position with its stylus in contact with av record, into an inoperative position where it will rest upon the free end of the tone arm 2-1, and that by thus inverting the sound box, the opening in the free end of the tone arm2-l and the opening in the corresponding adjacent end of the supply pipe will be closed and the flow of current through the sound box will be stopped.

' This inversion of the sound box therefore effects the double function of moving the sound box into an'inopera'tive position, and

of stopping. the; flow of the fluid current therethrough, or, in other words, when the sound box is inverted into an inoperative position, theflow of the fluid current "through the sound] box is automatically 3 stopped anda waste of power is prevented.

This invention is'not limited in its application to the particular construction hereinbefore described, but may be, applied in other forms to meet various conditions, with out departing from the spirit of this in- .ve'ntion or the scope of the appended claims. Having thus described my invention, what I claim and desire-to protect by Letters Patent of the United States is:

- 1. The combination with a sound box provided with means for conveying a fluid cur-.

rent therethrough, of means whereby said "current is stopped by raising tli"'sound box from its operative position.

'2. The. combination with a sound box,

provided with an-orifice, of means for conveying a fluid current through the said orifice and means whereby the'flow of current is stopped when the sound box is moved-out of its operative position, said latter meanscomprisinga valve connected to the sound 9. In-a talking machine, the combination with-a fixed support,-of anarm "mounted to box.

' 3. The combinationwith a sound box provided with a passage therethrough, of means arranged to convey a fluid current through said sound box, said means comprising an inner and an outer tube, said tubes being provided with openings which register with each other when the sound box is in its operative position and which are closed when the sound box is lifted out of its operative position.

4. The combination with a sound box,

-, provided with an inlet and an outlet orifice,

of U tubes secured to said sound box overv said inlet and outlet orifices, and a sleeve )ivotally connected to the outer ends of said tubes, said sleeve being provided with 1nlet and outlet orifices and one of the said U tubes having orifices which register with the orifices of said sleeve when the sound' box is in its operative position- 5. The combination with a sound box, provided with an inlet and an outlet orifice of two tubes secured to saidsound box over said orifices respectively, a supply pipe pivotally connected to one of said tubes and a sound amplifier pivotally connected to, the other of said tubes.

6. In a talking machine, the combinationwith a sound box provided with a passage therethrough, of a U-shaped tube engaging at one end one side of said box and communicating with, said passage, a-source of -fiuid supply communicating with said U- shaped tube, a U-shaped tube engagingat,

one end the other side of said box and communicating with said passage, and a movable sound box arm connected to said tubes.

7. In a talking machine, the combination with a sound box provided with an inlet orifice and an outlet-orifice, of a- U-shaped tube secured to said sound box over each of said orifices, and a sleeve pivotally connected to the outer ends of said U-shaped tubes, said sleeve being provided with-an inlet 'orifice and an outlet orifice, and one of Y when the sound box is in its operative position, and which'is' closed when the sound box is moved to rotate the said U-shaped tubes with respect to said sleeve.

8. In a. talkingmachine, the combination with a hollow sound box arm, of a trans verse tubular support secured to oneend of said arm,- a discharge tube mounted in and rotatable with respect tosa'id support and V communicating with said arm, a supplypipe connected to said transverse tube, a supply tube rotatable coaxially with said discharge tube and communicating through said trans-- swing with respect thereto, a sound box carned by and'movable with respect to said arm, and. means mountedto swing on'a'n axis coincident with the axis of said arm, for supplying said sound box with a fluid current.

10. Ina talking machine, the combination with ahollow movable sound box arm of asound box. supported thereby and movable with respect thereto and provided with means for impressing sound waves'upon a flllld onrrent, a tubular conyeyer for supply ing a fluid current to said sound box, a curved tubular connection through which said conveyer communicates with said sound box, and a curved tubular connection between said sound box and said sound box arm through which said sound box communicates with said sound box arm, said curved tubular connections being movable with respectto said sound box arm.

11. In a talking machine, the combination -with a sound box, of a pair of rotatively mounted U-shaped tubes engaging opposite sides respectively of said sound box, and means for supplying one of said tubes with a fluid current, the other of said tubes acting as an outlet for said box.-

12. In a pneumatic talking machine, the combination with a fixed support, of a sound conducting arm mounted thereon to swing on a fixed axis, a sound box carried by said arm and movable with respect thereto and having an outlet communicating therewith, and meansmounted to swing coaxially with said arm for supplying said sound box with a fluid current.

13. In a talking machine, the combination with a swinging arm, of a sound box carried thereby and movable with respect thereto, an air supply tube in communication with said sound box and secured to said arm, means for supplying air to said air supply tube, anda flexible tube connecting said means to said air supply tube.

14. In a sound reproducer, the combination with a sound box having an aperture therein, of U-shaped tubular extensions at each end of said sound box, a sleeve pivotally connecting the two ends of said U ex tensions, said sleeve being divided into two compartments, a fluid supply pipe opening into one of said compartments, sound amplitying means communicating with the other of said compartments, means for impelhng a current of air through sa d supply pipe,

3 and means for impressing sound Waves upon said current as it passes through said sound box.

15. In a talking machine, the combination with a sound-box provided With a passage" therethrough, of a U-shaped tube engaging atone end one side of said box, and communic-iting with said passage, a source offluid supply communicating with sand U-shaped tube, a U-shaped tube engaging at one end the other side of said box and communicating with said passage formingv an outlet therefor, the other ends of said U-shaped tubes being in axial alinement,and sound conducting means by which said other ends are supported and with respect to which said other ends are rotatable.

16. In a talking machine, the combination with a pneumatic sound box, of a pair of tubes engaging opposite sides respectively of said sound box, said tubes being mounted to oscillate about an axis parallel to the longitudinal axis of said sound box, and means for supplying one of said tubes with a fluid current.

17. In a talking machine, the combination with a sound box arm, of a sound box, means connecting said arm and said sound box and forming an inlet and an outlet for said sound box and engaging axially opposite sides of the same, said means being movable with respect to said arm to permit said sound box to move with respect to said arm, and means for forcing a fluid current into said so-md box through said inlet.

18. In a talking machine, the combination with a hollow sound box arm, of a sound ducted from said box to said arm, said curved tubular conncctions being movable with respect to said arm to permit said box to swing with respect to said arm.-

1 In a talking machine, the con'ibination with a hollow sound box arm, of a pneuim'atic' sound box, a tubular connection between said sound box and said arm through which said box communicates with the arm, a tubular conveyer for a fluid current carried by said arm, and a tubular connection between said conveyer and said sound box and forming an inlet for said sound box, said connections being movable with respect to said arm to permit said sound box to swing with respect to said arm.

' 20. In a talking machine, the combination with a rotary record support, of a hollow sound box arm mounted to swing in a fixed plane'across said support, a fluid pressure pipe connected to said arm and carried thereby, means for supplying said pipe with fluid under pressure, and a pneumatic sound box connected to said arm and movable with respect thereto toward and away from said record support, said sound box having an inlet communicating with said pipe and an outlet communicatingwith said arm. a

21. In a talking machine, the combination with a rotary disk record support, of a sound box arm mounted to swing in a fixed plane across said support, av pneumatic sound box connected to said arm and movable with respect thereto toward and away .from said support, and means for supplying said sound box With a fluid current.

22. In a talkin machine, the combination with a rotary isk record support, of a sound box arm mounted to swing in a fixed plane across said support, a pneumatic sound box connected to said arm and movable with respect thereto toward and away from said support, and means carried by.

means for supplying said sound box with 'afluid current.

I 24. In a talking machine, the combination .with a rotary record support, of a sound box-arm mounted to move across said support, a pneumatic sound box connected to said arm and movable with respect thereto toward and away from said support, and

means carried by said arm for supplying.

said sound box with a fluid current.

25. Ina talking machine, the combination with a rotary record support, of means I mounted to move. across saidsupport, a pneumatic sound box connected to said means and movable with respect thereto toward and away from said support, and

' means for supplying said sound box with a 4 fluid current.

-26. In a talking machine, the combination with a rotary record support, of means mounted to. move across said support, a

pneumatic sound box connected to and carried by said means, and movable with re-- spect thereto, into and out of operative positionwith 'respect'to a record on said support, and means for supplying said sound box with a fluid current. I

27. In a talking machine, the combination with'a rotary recordsupport, of means rela- .tively movable with respect to said sup -po'rt, a. pneumatic sound box connected to v and carried by said means and movable with respect thereto, and means for supplying said sound box with a' fluid current.

28. In a talking machine, the combination with a rotary record support, of means relatively movable, with-respect to said support,

a pneumatic sound box connected to and carried by said means, andmovable with respect thereto, into 'andput of opera'tive .,p o-.-

sition with respect to a sound'reeord onsaid jsupport,,- and means carried by said first mentioned means for supplying said sound box witha fluid current.

29. In a talking machine, the combination with'a rotary record support, of a tubular sound box arm mounted to move across said support, a pneumatic sound box carried by 1 and communicating with said arm' and movable "with respect thereto toward and away from said; support, and means for supplying said soundbox with a fluid current. 30. .In a talking machine, the combination with a rotary record. support, of a tubular.

'sition, and means to supplyj ai with a fluid current, saidsoundbox being support, a pneumatic sound box carried by and connnunicating with said 'arm and movable with respect thereto toward and awayfrom said support, and means for supplying said sound box with a fluid current. 7o'

31. The combination with a, pneumatic sound box provided with an inlet and an outlet, ofv two tubes secured to said sound box and communicating with said inletand said outlet respectively, a hollow sound conveyer '75 forming an outlet for one of said tubes, and a tubular fluid conveyer arrangedto deliver a fluid current to the "other of. said tubes," one of said conveyers being movable, and

said tubes and said sound box beingarranged to swing with respect-to saidmovable conveyer about a common axis.

32. The combination with a pneumatic sound box provided with an inlet and an outlet; of two tubes secured to said sound box over said inlet and u said outlet respectlvely, a-hollow' sound conveyer forming an outlet for-'one of said-tubes,and ga-tubularv fluid conveyer for supplying theother of' said tubes witha fluid current, said tubes bemg movably connected to said conveyers to swing in unison vwith said sound box and with respectto said conveyers alZQJJ a common axis, and said conveyers being mountedto swing about a second common axis.

33. In a talking machine, the combinationwith a pneumatic sound box, of a'pair of tubes engaging opposite sides respectively of said sound box, and forming'aninlet and 1 an outlet thereforrespectively," mean s for supplying one of said tubes with-a fluid current, and a movable sound boxarm to which said tubes are movably connected.

34. In a talking machine, the combination 1 with a movable sound box arm, of a pneu matic sound box, means connecting said arm and said sound box and forming an inlet' and an outlet for said sound box, said means 1 being movable with respect to said arm, and l&

means for supplying a fluid current to said sound .box through said'inlet. w

35. In a talking machine, th

with a record support, of a movable member, apneumatic sound box carried by said movable member and movablewith respect to said member towardand away from said record-support and'into an ino erative po- 5 sound box supported when in said; inoperative position by said member. I v 36. In'a talking machine, the combination,

with a redord support, of a movable; member, apneumatic sound box carried bysaid movablemember and invertible with respect sound box arm pivoted'to swing acrosssaitb a fluid current to said sound box, said sound 139 e combination box being entirely supported when in said inverted position by said movable member.-

engaging at one end one side of said box and communicating with said passage, a-

source of fluid supply "communicating with 'said 'U-shaped tube, a U-shaped tube engaging at one end the other side of said box and communicating with said passage, and a movable sound box arm connected to the other ends of said tubes, said sound box and, said tubes being movable in unison with respect to vsaid arm.

, 38. In a talking machine, the combination of a sound box,

a record supp0rt',--means for conveying a fluid current. through said sound box, said sound box and record support being relatively movable, and means controlled by a relative movement of said sound box and said record support for varyport to an inoperative position,

,'of -a movable arm, sound box having a ing' the flow of fluid current.

39. In a talking machine, the combinationwith a record support and a sound box movable with respect to said record sup port, of means for conveying a fluid currentthrough the said sound box, and means --actuated by said relative movement of the Sound box with respect to the said record' support for' varying thefl'ow of said fluid current.

tion with movablewith respect to said recordsup; means for conveying a fluid current through said sound box, and means controlled by the movement of said'soundboxto an inoperative position for stopping the fluid current.

41. In a talking machine, the combination of a sound boxv having a passage therecurrent, a movable arm,

a support therefor, and articulative means connecting 'said sound box and said arm and including fluid supply and discharge tubes t -communicating withthe opposite ends of the said passage.

42. In a talking machine, the-combination a support therefor, a passage therethrough for a fluid current, and means for permiti said fluid current.

' with the ends'of said passage,

ting said ,sound box s a1d arm, toassume operative and inoperave positions,

said means communicating respectively,

and providing an inlet and an outlet for port therefor, fluid current through said sound box, said and pivoted coaxially to said arm.-

rendered inoperative ing therethrough,

v ally connectin with said taper arm, 40.. In a -talking;.machiire, the combinaa record support, a sound box eating with said sound box arm connected to said tubes. to move relatively to meanscommunicating with opposite ends of said passage and being pivotedto said arm.

44. In a talking machine, the combination of a sound box having a passage therethrough, a movable sound box arm,

and means for conveying a means including separate tubes communi-' eating with opposite ends of said ,45. In a pneumatic talking machine, the combination with a sound box of means for supplying 'a fluid current" thereto, said sound box being movable into and out of operative position, and said means being by moving said sound box from its operative position.

46. In a sound reproducer, the.combination of a sound box provided with an open- U-shaped extensions at the ends of said sound box, a sleeve pivotthe outer ends of said U tubes, a partition dividing said sleeve into two compartments, a hollow taper'arm extending from',one of said compartments, sound amplifying means communicating a supply pipe communicating with the other of said compartments, a flexible tube communicating with said supply pipe, means for supplying a fluid current to said tube, and a valve over the opening of said sound box for impressing sound'waves upon the fluid current. 47. In a pneumatic talking machine, the combination with a sound box, of an air supply tube, and means actuated by moving said sound box for closing said air sup- Ply tube:

48. In a talking machine,.the combination with a "sound box provided with a passage therethrough, of a. U-shaped tube engaging at oneend one side of said sound a suppassage box and communicating with said passage,

a Ushaped tube engaging at one end the other-side of said sound box and communipassage, and a movable In witness whereof, Ihave hereunto'set my hand this 22nd day of March, 1912.

, WILBURN N. DENNISON. Witnesses: 1 r r JOHN D. MYERS, DqaAnS. RnNwIoK, Y

.' copies of this patent may-be .obtalned jfor five cents my, by addressing the fcommi's s ioner 052mm,

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